Feature 1.[Idea Companion for Cup] Are you still troubled by the leak of tumbler? Our spill stopper set is the best solution, it keeps your cup completely spill stop. 2.[Only for Version 1.0] Not available for H2.0. Only compatible with stanley tumbler 1.0 40oz & 30oz. [Patent Pending] 3.[Straw Topper] The straw tip cover cap stop water from spilling out of the straw, and can stop other items from entering through the straw. 4.[Round Leak Plug] Installed in the middle of the inside of the lid for sealing, with a cross opening design to ensure that air enters when drinking water, making drinking water easy. 5.[Square Spill Stopper Seal] Installed in the straw hole of the lid, it not only forms a seal, but also holder the straw. Specification Condition: 100% New MaterialSilicone Color: White Shape: Round, Square Size: 3.8"W x 0.4"H Packing List 1 Set Spill Stopper